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Preparation method of contact lens with two-dimensional code

A contact lens and two-dimensional code technology, applied in glasses/goggles, optics, instruments, etc., can solve the problems of single function, no two-dimensional code, damage to the cornea, etc., and achieve uniform mixing distribution, uniform mixing, and heating effect. Good results

Active Publication Date: 2018-05-08
广州琦安琦生物医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the contact lenses currently on the market are used to correct vision or treat eye diseases. Their functions are relatively single, and there are no identification codes such as two-dimensional codes. It cannot be directly used to prepare contact lenses with QR codes, otherwise the QR code graphics will cause discomfort to the wearer's cornea, and long-term wear will damage the cornea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing a contact lens with a two-dimensional code, comprising:

[0033] 1) Raw material preparation

[0034] A. Mix 30 parts of hydrogel, 0.5 parts of emulsion stabilizer and 0.8 part of monomethyl fumarate sodium salt by weight, keep the temperature at 32°C, heat for 30 minutes, and then place it in infrared rays with a wavelength of 900nm for 30 minutes and placed in a microwave with a frequency of 800MHz for 20 minutes, the two are alternately carried out, and the cycle is 2 times to obtain the first mixture;

[0035] B. Mix 20 parts of silicon hydrogel and 0.5 part of glycerin by weight, and heat at 40°C for 30 minutes to obtain the second mixture;

[0036] C. Mix the first mixture with the second mixture, place it in a vacuum device with a vacuum degree of 0.05MPa, raise the temperature to 40°C at a heating rate of 2°C / min, and keep it warm for 30min. During the heat preservation process, keep the vacuum device at a speed of 600r / min rotation, th...

Embodiment 2

[0049] A method for preparing a contact lens with a two-dimensional code, comprising:

[0050] 1) Raw material preparation

[0051] A. Take 30 parts of hydrogel, 0.5 parts of emulsion stabilizer, and 0.8 parts of monomethyl fumarate sodium salt by weight, mix them, keep the temperature at 33°C, heat for 30 minutes, and then place them in infrared rays with a wavelength of 900nm for 30 minutes. and placed in a microwave with a frequency of 800MHz for 20 minutes, the two are alternately carried out, and the cycle is 2 times to obtain the first mixture;

[0052] B. Mix 20 parts of silicon hydrogel and 0.5 part of glycerin by weight, and heat at 43°C for 30 minutes to obtain the second mixture;

[0053] C. Mix the first mixture with the second mixture, place it in a vacuum device with a vacuum degree of 0.05MPa, raise the temperature to 44°C at a heating rate of 2°C / min, and keep it warm for 30min. During the heat preservation process, keep the vacuum device at a speed of 600r / ...

Embodiment 3

[0066] A method for preparing a contact lens with a two-dimensional code, comprising:

[0067] 1) Raw material preparation

[0068] A. Take 30 parts of hydrogel, 0.5 parts of emulsion stabilizer, and 0.8 parts of monomethyl fumarate sodium salt in parts by weight, keep the temperature at 35°C, heat for 30 minutes, and then place it in infrared rays with a wavelength of 900nm for 30 minutes. and placed in a microwave with a frequency of 800MHz for 20 minutes, the two are alternately carried out, and the cycle is 2 times to obtain the first mixture;

[0069] B. Mix 20 parts of silicon hydrogel and 0.5 part of glycerin by weight, and heat at 45°C for 30 minutes to obtain the second mixture;

[0070] C. Mix the first mixture with the second mixture, place it in a vacuum device with a vacuum degree of 0.05MPa, raise the temperature to 50°C at a heating rate of 2°C / min, and keep it warm for 30min. During the heat preservation process, keep the vacuum device at a speed of 600r / min...

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Abstract

The invention discloses a method for preparing contact lenses with a two-dimension code. The method comprises the following steps: 1) preparing raw materials, namely, A, mixing hydrogel, an emulsion stabilizer and a monomethyl fumarate sodium salt in parts by weight, heating, and treating with infrared rays and microwaves alternatively twice, thereby obtaining a first mixture; B, mixing silicone hydrogel with glycerinum in parts by weight, thereby obtaining a second mixture; C, mixing the first mixture and the second mixture, thereby obtaining a third mixture; D, mixing the third mixture, nano-silver granules and nano ferric hydroxide granules, feeding into water, and treating in ultrasonic waves, thereby obtaining a fourth mixture; 2) molding. By adopting the contact lenses prepared by using the method disclosed by the invention, eyes can be prevented from abrasion caused by a two-dimension code graph when people wear the contact lenses with the two-dimension code, and wearing comfort can be further improved; moreover, due to the two-dimension code added on the contact lenses, the contact lenses can be widely used in fields such as a recognition system, a security protection system or an anti-theft system, and the like.

Description

technical field [0001] The invention relates to a preparation method of a contact lens. More specifically, the present invention relates to a method for preparing a contact lens with a two-dimensional code. Background technique [0002] Contact lenses are widely known as a lens worn on the cornea of ​​the eye to correct vision or protect the eyes. Its function is to correct vision, protect vision or beautify the appearance. , astigmatism and other refractive error patients have brought great improvement, and wide field of vision, realistic vision, in addition to the control of juvenile myopia, astigmatism development, the treatment of special eye diseases and other aspects have also played a special role. However, most of the contact lenses currently on the market are used to correct vision or treat eye diseases. Their functions are relatively single, and there are no identification codes such as two-dimensional codes. It cannot be directly used to prepare the contact lens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02C7/04B29D11/00
CPCB29D11/00038G02C7/049
Inventor 伍卫东
Owner 广州琦安琦生物医疗科技有限公司
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